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Q1 Factorise the following expressions 

(III)

25 m ^2 + 30 m + 9

Answers (1)

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We have, 
            25m^2 + 30m + 9 = 25m^2 + 15m + 15m + 9
                                                 = 5m (5m + 3) +3(5m + 3)
                                                 = (5m + 3) (5m + 3) = (5m+3)^{2}
Therefore,
                 25m^2+30m+9 = (5m+3)^2

Posted by

Gautam harsolia

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